Bidirectional transfer of meperidine across the guinea pig placenta.
D000818:Animals; D001835:Body Weight; D004569:Electroencephalography; D005260:Female; D005333:Fetus / Q000187:drug effects / Q000378:metabolism; D005865:Gestational Age; D006168:Guinea Pigs; D007273:Injections, Intramuscular; D007274:Injections, Intraperitoneal; D007275:Injections, Intravenous; D008431:Maternal-Fetal Exchange; D008614:Meperidine / Q000008:administration & dosage / Q000378:metabolism*; D011247:Pregnancy
D008614:Meperidine